[windows-build] upgrade protobuf library to 3.2.0 provided by [rwinli… …b/protobuf](https://github.com/rwinlib/protobuf/releases/tag/v3.2.0)#42

Merged

jeroen merged 1 commit intoeddelbuettel:masterfrom maciejlach:master

Feb 22, 2018

+7-7

Commits on Feb 22, 2018

[windows-build] upgrade protobuf library to 3.2.0 provided by [rwinlib/protobuf](https://github.com/rwinlib/protobuf/releases/tag/v3.2.0 )
maciejlach
committed